The ALPEN Apex XP 10x42 binoculars guarantee impressive image definition with a high level of detail even in low light conditions. VIdrio The binoculars of the Apex XP series feature powerful optics made of high-quality materials. Thanks to the ED (Extra-low Dispersion) glass, you can observe your surroundings with impressive resolution and colour. The glass of the APEX XP 10x42 binoculars is made of the high-performance glass material BaK-4. Coating The binoculars also feature a state-of-the-art coating. The unique PXA phase coating ensures that the images are bright and full of contrast. There is also an HR metal prism coating, which lets more light into the eyes for even brighter images. Rugged, waterproof and easy to use Like all other models in the ALPEN Apex XP series, the 10x42 binoculars are suitable for use in adverse weather conditions. In addition to its waterproof housing that prevents water from entering the optics, it also features a nitrogen filling that prevents the lenses from fogging up from the inside. And for maximum comfort, the binoculars have a lightweight and compact design. ALPEN Apex XP 10x42 binoculars: Enjoy the experience of this high-performance, waterproof optic. They also feature a nitrogen filling that prevents the lenses from fogging from the inside. And for maximum comfort, the binoculars have a lightweight and compact design. ALPEN Apex XP 10x42 binoculars: enjoy the experience of these high-performance, waterproof optics. they also feature a nitrogen filling that prevents the lenses from fogging up from the inside. And for maximum comfort, the binoculars have a lightweight and compact design. ALPEN Apex XP 10x42 binoculars: enjoy the experience of this high-performance, waterproof optic.